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Finding the Fourth Proportional to 140,010.30, 210,015.45 and 134,178.30

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Solution

The fourth proportional to 140,010.30, 210,015.45 and 134,178.30 is: 201,267.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,010.30 : 210,015.45 = 134,178.30 : x
  2. Step 2: Convert to fraction form
    140,010.30/210,015.45 = 134,178.30/x
  3. Step 3: Cross multiply
    140,010.30x = 210,015.45 × 134,178.30
  4. Step 4: Simplify right side
    140,010.30x = 28,179,516,054.74
  5. Step 5: Solve for x
    x = 28,179,516,054.74/140,010.30
  6. Step 6: Final answer
    x = 201,267.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.